146005 - Clicking on scroll bar thumb of back window does not change focus

Status: RESOLVED DUPLICATE of bug 117465

(Core :: XUL, defect)

Description

[Ray Sanders]

1. Create two windows, overlapped, so that the right side scroll bars of both
windows are visible. Both windows should have sufficient content that the
vertical scroll bars are available for scrolling.

2. Click on the 'thumb' (movable slider) of the second window (the one behind
the first window). You can cause the second window to scroll up and down,
without it having been brought to the front (change of focus I believe).

This does not happen if you click in the second window's scroll bar, anywhere
except the thumb. If those cases, it changes focus correctly.

In actuallity, the scroll bar of the second bar should be 'inactive' when it is
not in front (according to the Mac human interface guidelines).

Note that this bug report is similar to, but not the same as, 103325 and 46347.

Comment 1

[Greg K.]

Confirmed using Mac/2002072203. Scrollbars on windows can be manipulated even when in 
the background, and this shouldn't be possible.

Reassigning to XP Toolkit/Widgets.

Comment 2

[jag (Peter Annema)]

pink, is this due to Mac's use of a native scrollbar?

Comment 3

[Mike Pinkerton (not reading bugmail)]

actually, this happens because of the code i put in for dragging out of
background windows. since the mousedown gets sent to the bg window, you can do
things like select text or use the scrollbars. this is a dupe, but i can't find
my bug that it's a dupe of 117465

*** This bug has been marked as a duplicate of 117465 ***